Results 31 to 40 of about 243,756 (306)
Quark Soup al dente: Applied Superstring Theory [PDF]
We discuss the application of the AdS/CFT correspondence to possibly gain new physical insights for the strongly coupled quark-gluon plasma. This article provides an informal summary of a talk given by RCM at the 18th International Conference on General ...
+38 more
core +1 more source
Abstract We consider four-dimensional general relativity with vanishing cosmological constant defined on a manifold with a boundary. In Lorentzian signature, the timelike boundary is of the form σ × ℝ, with σ a spatial two-manifold that we take to be either flat or S2. In Euclidean signature we take the boundary to be S2 × S1.
Dionysios Anninos +2 more
openaire +5 more sources
Probing Yukawian gravitational potential by numerical simulations. I. Changing N-body codes [PDF]
In the weak field limit general relativity reduces, as is well known, to the Newtonian gravitation. Alternative theories of gravity, however, do not necessarily reduce to Newtonian gravitation; some of them, for example, reduce to Yukawa-like potentials ...
A. Toomre +16 more
core +1 more source
Some applications of the Shapiro time delay [PDF]
Listening to echoes has long been a way to estimate distances, a technique whose backbone is the time delay. The gravitational field also creates a time delay, called Shapiro time delay, that helps us extract some information from the field and ...
Ghasemi Azar A., Rezaei H., Moradpour H.
doaj +1 more source
Particles in a yet unexplored dark sector with sufficiently large mass and small gauge coupling may form purely gravitational atoms (quantum gravitational bound states) with a rich phenomenology. In particular, we investigate the possibility of having an observable signal of gravitational waves or ultra high energy cosmic rays from the decay of ...
Nielsen, Niklas G. +2 more
openaire +3 more sources
Statistical Mechanics-Based Schrödinger Treatment of Gravity
The entropic gravity conception proposes that what has been traditionally interpreted as unobserved dark matter might be merely the product of quantum effects.
Angelo Plastino, M. C. Rocca
doaj +1 more source
Gravitation Physics at BGPL [PDF]
We report progress on a program of gravitational physics experiments using cryogenic torsion pendula undergoing large-amplitude torsion oscillation. This program includes tests of the gravitational inverse square law and of the weak equivalence principle.
A.M. Kalet +20 more
core +3 more sources
Dark Energy as a Born-Infeld Gauge Interaction Violating the Equivalence Principle [PDF]
We investigate the possibility that dark energy does not couple to gravitation in the same way than ordinary matter, yielding a violation of the weak and strong equivalence principles on cosmological scales.
A. Füzfa +4 more
core +6 more sources
Summary: We describe some novel effects generated by the gravitational Chern-Simons term similar to those induced by its electromagnetic counterpart. In particular, a structureless particle source generates a gravimagnetic field. Conversely, it causes a spinning source to contribute to the static Newtonian potential, thereby violating the equivalence ...
openaire +3 more sources
Adam Smith et la physique de Newton
In most of Smith's writings we find references to the natural philosophy of Newton. Beyond the use of Newtonian concepts and laws to deal with specific issues, we would like to focus on the relationship between the Smithian representation of the social ...
Arnaud Diemer, Hervé Guillemin
doaj +1 more source

